package com.xiubai.appforpda.widget;import android.content.Context;import android.util.AttributeSet;import android.widget.ListView;public class ExpandListView extends ListView {    public ExpandListView(Context context, AttributeSet attrs) {        super(context, attrs);    }    public ExpandListView(Context context) {        super(context);    }    public ExpandListView(Context context, AttributeSet attrs, int defStyle) {        super(context, attrs, defStyle);    }    @Override    public void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {        int expandSpec = MeasureSpec.makeMeasureSpec(Integer.MAX_VALUE >> 2,                MeasureSpec.AT_MOST);        super.onMeasure(widthMeasureSpec, expandSpec);    }}